Wartime (noun)

1. The time during which a war is in progress.
2. The conditions or circumstances that exist during a war.

Origin:

From the phrase during the war.

Examples:

1. The country was on a wartime footing.
2. Rationing was introduced during wartime.
3. The government implemented wartime measures to conserve resources.
4. Wartime shortages made it difficult to find certain goods.
5. Wartime conditions caused widespread damage and destruction.